Lead Service Line Replacement

The purpose of the Lead and Copper Rule (LCR) is to protect public health by minimizing lead and copper levels in drinking water. Lead and copper enter drinking water mainly from corrosion of lead and copper containing plumbing materials. The rule establishes action levels (AL) for lead and copper based on a 90th percentile level of tap water samples. An action level exceedance is not a violation but triggers other requirements to minimize exposure to lead and copper in drinking water, including water quality parameter monitoring, corrosion control treatment, source water monitoring/treatment, public education, and lead service line replacement. All community water supplies and nontransient noncommunity water supplies are subject to the LCR requirements. 

To learn more about LCR you can visit:

Lead and Copper Rule  

Lead and Copper in Drinking Water  

Lead and Copper Rule Long-Term Revisions  

Safe Drinking Water Act  

Lead Service Line Requirements

Village of Dundee Lead Line Replacement Policy

In 2018, Michigan adopted revised lead and copper rules to protect public health in the State by reducing lead exposure through drinking water. The updated rules reduce the “lead Action Level”, revise water sampling protocols, require a materials inventory at certain intervals, and require the replacement of all lead service lines (LSLs) at a rate averaging 5% per year, not to exceed 20 years total for replacement of all service lines. Partial lead service line replacement is no longer permitted, except in case of an emergency repair, and the full lead service line must be replaced at the expense of the water supply. The new rules apply to all service lines in the water supply system, including any portion of a service line that is privately owned.

To view the policy please click here